Velars

Old Church Slavonic Canon - Phonology - Morphophonemic Alternations
... As a result of the first and the second Slavic palatalizations, velars alternate with dentals and palatals ... a result of a process usually termed iotation (or iodization), velars and dentals alternate with palatals in various inflected forms and in word formation ... Alternations in velar consonants original /k/ /g/ /x/ /sk/ /zg/ /sx/ first palatalization and iotation /č/ /ž/ /š/ /št/ /žd/ /š/ second ...

Slavic First Palatalization - Interpretation
... There is also some disagreement on whether Proto-Slavic velars became affricates before front vowels and before */j/ at first sight, it seems likely ... viewpoint, it's very hard to believe that velars might have been unpalatalized before *j by the time they palatalized before *e and *i ... *j was then lost after palatalized velars (or affricates) in Common Slavic period of iotation of other consonants ...

Glottalic Theory - Traditional Reconstruction
... consonants The Proto-Indo-European plosives (traditional) labials dentals palatalized velars velars labialized velars voiceless stops p t kʲ k kʷ voiced stops (b) d ...

Ancient Greek - Phonology - Sound Changes - Assimilation
... Before an /s/ (future, aorist stem), velars become, labials become, and dentals disappear ... Before a /tʰ/ (aorist passive stem), velars become, labials become, and dentals become ... Before an /m/ (perfect middle first-singular, first-plural, participle), velars become, nasal+velar becomes, labials become, dentals become, other sonorants remain the same ...

Proto-Indo-European Phonology - Phonetic Correspondences in Daughter Languages
... for the most part straightforward, but there are some complications with the velar consonants ... Each group merges the PIE "plain velars" with one of the other two series, the Centum group merging "palatals" and "plain velars" while the Satem group merges labiovelars ...